Cho tam giác ABC cân tại A (góc A nhọn). kẻ BE vuông AC, CF vuông AB (E thuộc AC, F thuộc AB).

a, Chứng minh tam giác ABC = tam giác ACF.

b, gọi M là giao điểm của BE và CF, chứng minh AM là tia phân giác góc BAC

Giúp em với ạ em đg cần gấp. Cảm mơn mn trc

1. We.........(receive) a gift from our friends last week.

2. They......(visit) hue secently.

3. She.......(learn) english for 5 years.

4. They just........(make) a cake.

5. She already......(finish) her task.

6. They.......(have) dinner at the moment.

Mn giúp em với ạ, em đang cần gấp 

1. Look! Our new tearcher (come).... She (have) ...... long, black hair.

2. You should (study)......harder.

3. I (use).....to smoke a lot, but now i don't.

4. The boy likes (play)...... games but hates (do).......lessons.

5. His doctor advised him (give up)......(smoke).......

6. Plesase stop (talk)......; I (try)......(finish).........a letter to the Y & Y Green Group
7. We (have)........ a party next Sunday.Would you like (come).......?

8. Linh would like (go) ....... to the movies 

9. Would you like (join)......with us?

10. You must (go)......to bed early 

11. She ought (study)....... hard.

Giup mình với ạ!